Star Wanders Too Close to a Black Hole

This artist's rendering shows the tidal disruption event named ASASSN-14li, where a star wandering too close to a 3-million-solar-mass b...

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Observing the Sun

A broad hole in the corona was the Sun's dominant feature November 7-9, 2017, as shown in this image from NASA's Solar Dynamics Obse...

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Space

Dellingr, a shoebox-sized spacecraft built to show that CubeSat platforms could be cost-effective, reliable and capable of gathering highly ...

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What is this meteor doing?

What is this meteor doing? Dynamically, the unusually short and asymmetric train may indicate that the sand-sized grain at the center of th...

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NGC 3310, Spiral Galaxy

The party is still going on in spiral galaxy NGC 3310. Roughly 100 million years ago, NGC 3310 likely collided with a smaller galaxy caus...

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Two Black Holes Merge

Just press play to watch two black holes merge. Inspired by the first direct detection of gravitational waves by LIGO, this simulation vid...

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Galaxy IC 342

Similar in size to large, bright spiral galaxies in our neighborhood, IC 342 is a mere 10 million light-years distant in the long-necked, ...

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The Big Dipper

The Big Dipper is an easy to recognize, well-known asterism in northern skies, though many see the Plough or Wagon. Famous bright nebulae...

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The Running Chicken Nebula

The eggs from this gigantic chicken may form into stars. The featured emission nebula, shown in scientifically assigned colors, is catalog...

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Supermassive black holes

What's happening at the center of active galaxy 3C 75? The two bright sources at the center of this composite x-ray (blue)/ radio (p...

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